655239673 has 8 divisors (see below), whose sum is σ = 715724640. Its totient is φ = 594907680.

The previous prime is 655239671. The next prime is 655239679. The reversal of 655239673 is 376932556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 655239673 - 2¹ = 655239671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655239671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29188 + ... + 46501.

It is an arithmetic number, because the mean of its divisors is an integer number (89465580).

Almost surely, 2^655239673 is an apocalyptic number.

It is an amenable number.

655239673 is a deficient number, since it is larger than the sum of its proper divisors (60484967).

655239673 is a wasteful number, since it uses less digits than its factorization.

655239673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76487.

The product of its digits is 1020600, while the sum is 46.

The square root of 655239673 is about 25597.6497553975. The cubic root of 655239673 is about 868.5604736190.

It can be divided in two parts, 6552 and 39673, that added together give a square (46225 = 215²).

The spelling of 655239673 in words is "six hundred fifty-five million, two hundred thirty-nine thousand, six hundred seventy-three".